Public versus private
Choosing between public and private cloud models will depend on an organization's business model, budget, security, and compliance factors. Let's discuss some of the major differences between them.
A public cloud is basically the internet-based cloud computing platform. Examples of major public cloud providers include Amazon Elastic Compute Cloud (EC2) and Windows Azure Services platform. Since a public cloud uses shared infrastructure and a virtualized environment, multiple customers can use services simultaneously without interfering with each other's activities. It is a subscription-based, pay-per-usage model, and the only costs incurred are based on the capacity that is being used.
On the other hand, a private cloud solution pretty much provides the same cloud offerings, but infrastructure is deployed and operated exclusively for an organization or enterprise. The private cloud is also the preferred choice for organizations who depend on legacy applications, might...